BlueGiga driver?

[KristinaLauwers]

Need to install bluegiga driver (usbserial) like the old bluebird connector.

[KristinaLauwers]

I have added a custom action to the installer, but this needs to be tested.

[KristinaLauwers]

I am leaving this out of the installers for now since it seems that most people won't need this anymore anyway.